<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<script src="./js/vue.js"></script>
<style>
    [v-cloak]{
        display: node;
    }
</style>
<body>
    <div class="box" v-cloak>
        <input type="text" v-model="msg" >
        <h1>{{msg}}</h1>
    </div>
    <script>
        const vm = new Vue({
            el:".box",
            data:{
                msg:'www'
            }
        })
    </script>
</body>
</html>